Fabrication Long Period Fiber Bragg Grating Based on Photonic Crystal Fiber Using CO2 Laser. Al-Nahrain Journal for Engineering Sciences, [S. l.], v. 28, n. 4, p. 595–600, 2025. DOI: 10.29194/NJES.28040595. Disponível em: https://nahje.com/nahje/article/view/10. Acesso em: 11 apr. 2026.